26440888320 has 1456 divisors, whose sum is σ = 123762995712. Its totient is φ = 5255331840.

The previous prime is 26440888223. The next prime is 26440888321. The reversal of 26440888320 is 2388804462.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26440888321) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1149603829 + ... + 1149603851.

Almost surely, 2^26440888320 is an apocalyptic number.

26440888320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26440888320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61881497856).

26440888320 is an abundant number, since it is smaller than the sum of its proper divisors (97322107392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26440888320 is an equidigital number, since it uses as much as digits as its factorization.

26440888320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The spelling of 26440888320 in words is "twenty-six billion, four hundred forty million, eight hundred eighty-eight thousand, three hundred twenty".